Filter.



No. 632,870. Patented Sept. [2, I899.

C. L. HOLLAND.

FILTER.

Application filed Nov. 19, 1898.)

(No Model.)

. L I L STATES NlTE ATENT FFICE.

FILTER.

SPECIFICATION forming part of Letters Patent N 0. 632,870, datedSeptember 12, 1899.

Application filed November 19, 1898. Serial No. 696,850. (N0 111M813 ToaZZ whom it may concern.-

Be it known that 1, CHARLES L. HOLLAND, a citizen of the United States,and a resident of Boston, in the county of Suffolk and State ofMassachusetts, have invented certain new and useful Improvements inFilters, of which the following is a specification.

My invention relates to that class of filters that are adapted to beapplied to a faucet; and the invention consists in thepeculiarconstruction and arrangement of parts, as hereinafter described,and set forth in the claim.

Referring to the accompanying drawings, Figure 1 represents a verticalsection through a filter embodying my invention. Fig. 2 isa top view ofthe cup for containing the filtering medium. Fig. 3 is a view of theperforated disk for fitting onto the top of same. Fig. 4 is a verticalsection of a modified form of cup for containing the-filtering medium.

The outer case is divided into two parts A A, the upper part A being atits upper end formed with an internal screw-thread a,adapted to fit ontoa faucet, and at its lower end is formed with a projecting ring a,screw-threaded on its inner side to receive the upper end of the lowerportion A, which has a correspondin g screw-thread on its upper end andat its lower end is formed with a nozzle A and a shoulder a to supportthe cup containing the filtering medium.

E is a cup, of glass, aluminium, or other non-corrosive substance,having its lower end perforated or formed with a number of small holes1), its upper end having an outer upwardly-projecting rim 1, of lessthickness than the body of the cup, so as to form a shoulder 2. Said rimis also formed with an inwardly-projecting lip 3 on each side. (See Fig.2.)

O is a disk of perforated metal (non-corrosive) formed on each side withnotches c, that fit over the projecting lips 3 of the cup 13, thediameter of said disk being equal to the internal diameter of the outerrim 1, so that when dropped in place it will rest upon the.

shoulder 2 and when given a partial turn is locked in place by the lipsD is the filtering medium, placed and held in the cup B in the mannerdescribed.

In Fig. 4 I have shown a modified form of cup B for containing thefiltering medium. In this casethe lower end of the cup has an inwardlyprojecting lip I) and is open in the center, the hole being covered by aperforated plate E, that rests upon the top of the projecting lip Z2,and the top of the cup is formed with a screw-thread on its outerperiphery, and a perforated cap or cover 13 is screwed thereon, and, ifdesired, a perforated dish shaped piece F, having spring sides, may beplaced on the top of the filtering medium D, so as to leave a spacebetween same and the cap or cover B Should the filtering medium becomeclogged or filled with impurities, said medium can readily and easily berenewed by unscrewing the lower portion A of the outer case. The glasscup can then be removed, emptied, cleansed, and refilled and againplaced in position ready for user That I claim is-- A filter consistingof a body divided in its center and having an internal screw-thread atits upper end and a nozzle at its lower end, a cup of non-corrosivematerial having a perforated bottom and having at its upper end an outerupwardly-projecting rim, projecting lips on same and a perforated diskof metal adapted to fit same, said cup containing a filtering medium asset forth.

In testimony whereof I have affixed my signature in presence of twowitnesses.

CHARLES L. HOLLAND.

\Vitnesses:

(Inns. STEERE, EDWIN PLANTA.

